diff options
| author | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2021-02-28 13:47:29 +0000 |
|---|---|---|
| committer | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2021-02-28 13:47:29 +0000 |
| commit | b64876ae559b05949c6857fb3d76822c2f7c4df2 (patch) | |
| tree | c98c09d45db6f43eeee3254f8b80b0b7c613e412 /test | |
| parent | 8b49c3e4bc767bec8a66ac81cbda033330fb2703 (diff) | |
merge revision(s) f364564e66d1db1de8e80d669287386595c8bc46: [Backport #16269]
bignum.c (estimate_initial_sqrt): prevent integer overflow
`Integer.sqrt(0xffff_ffff_ffff_ffff ** 2)` caused assertion failure
because of integer overflow. [ruby-core:95453] [Bug #16269]
---
bignum.c | 10 +++++++++-
test/ruby/test_integer.rb | 3 +++
2 files changed, 12 insertions(+), 1 deletion(-)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67894 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
| -rw-r--r-- | test/ruby/test_integer.rb | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/test/ruby/test_integer.rb b/test/ruby/test_integer.rb index 69347b6b11..0f289d8ed9 100644 --- a/test/ruby/test_integer.rb +++ b/test/ruby/test_integer.rb @@ -595,6 +595,9 @@ class TestInteger < Test::Unit::TestCase failures << n unless root*root <= n && (root+1)*(root+1) > n end assert_empty(failures, bug13440) + + x = 0xffff_ffff_ffff_ffff + assert_equal(x, Integer.sqrt(x ** 2), "[ruby-core:95453]") end def test_fdiv |